LizzieRossetti:
Something stirs
I can see it on my FLIR
Flicker flash beneath the whirr
Cannon he go pop and brrr brrr brrrt
we can see the splashes in the dirt
nothing stirs
All quiet now beneath the rotors whirr
I'd say that's a chainsaw, as in Texas Chainsaw Massacre. Or... or... or... a bellycompter. Whichever, both will chop your 'ead off. Carry on, don't lose your head (The Black Fingernail).